package nis;

import java.io.*;
import java.util.*;

public class Main {
    private static String[] stops;

    public static void main(String[] args) throws Exception {

        stop();
        mathmaticwords();
    }

    private static void stop() throws IOException {
        BufferedReader brr = new BufferedReader(new FileReader("src/stopword.txt"));
        StringBuffer sb = new StringBuffer();
        String text = null;
        while ((text = brr.readLine()) != null) {
            sb.append(text);
        }
        brr.close(); // 关闭读入流

        String str = sb.toString().toLowerCase(); // 将stringBuffer转为字符并转换为小写
        stops = str.split("[^(a-zA-Z)]+");

    }

    public static void mathmaticnumber() {
        try {
            char shu[] = new char[1000000];
            char zimu[] = new char[52];
            int j = 0;
            int count[] = new int[52];
            String pathname = "src/newAnalysis.txt";
            File filename = new File(pathname);
            InputStreamReader reader = new InputStreamReader(new FileInputStream(filename));
            BufferedReader br = new BufferedReader(reader);
            String line[] = new String[100];

            for (int i = 0; i < line.length; i++) {
                line[i] = br.readLine();
                System.out.println(line[i]);
            }

            br.close();
            int k = 0;
            while (line[k] != null) {
                for (int i = 0; i < line[k].length(); i++) {
                    shu[j] = line[k].charAt(i);
                    j++;
                }
                k++;
            }
//                     匹配表
            for (int i = 0; i < shu.length; i++) {
                switch (shu[i]) {
                    case 'a':
                        zimu[0] = 'a';
                        count[0]++;
                        break;
                    case 'b':
                        zimu[1] = 'b';
                        count[1]++;
                        break;
                    case 'c':
                        zimu[2] = 'c';
                        count[2]++;
                        break;
                    case 'd':
                        zimu[3] = 'd';
                        count[3]++;
                        break;
                    case 'e':
                        zimu[4] = 'e';
                        count[4]++;
                        break;
                    case 'f':
                        zimu[5] = 'f';
                        count[5]++;
                        break;
                    case 'g':
                        zimu[6] = 'g';
                        count[6]++;
                        break;
                    case 'h':
                        zimu[7] = 'h';
                        count[7]++;
                        break;
                    case 'i':
                        zimu[8] = 'i';
                        count[8]++;
                        break;
                    case 'j':
                        zimu[9] = 'j';
                        count[9]++;
                        break;
                    case 'k':
                        zimu[10] = 'k';
                        count[10]++;
                        break;
                    case 'l':
                        zimu[11] = 'l';
                        count[11]++;
                        break;
                    case 'm':
                        zimu[12] = 'm';
                        count[12]++;
                        break;
                    case 'n':
                        zimu[13] = 'n';
                        count[13]++;
                        break;
                    case 'o':
                        zimu[14] = 'o';
                        count[14]++;
                        break;
                    case 'p':
                        zimu[15] = 'p';
                        count[15]++;
                        break;
                    case 'q':
                        zimu[16] = 'q';
                        count[16]++;
                        break;
                    case 'r':
                        zimu[17] = 'r';
                        count[17]++;
                        break;
                    case 's':
                        zimu[18] = 's';
                        count[18]++;
                        break;
                    case 't':
                        zimu[19] = 't';
                        count[19]++;
                        break;
                    case 'u':
                        zimu[20] = 'u';
                        count[20]++;
                        break;
                    case 'v':
                        zimu[21] = 'v';
                        count[21]++;
                        break;
                    case 'w':
                        zimu[22] = 'w';
                        count[22]++;
                        break;
                    case 'x':
                        zimu[23] = 'x';
                        count[23]++;
                        break;
                    case 'y':
                        zimu[24] = 'y';
                        count[24]++;
                        break;
                    case 'z':
                        zimu[25] = 'z';
                        count[25]++;
                        break;
                    case 'A':
                        zimu[26] = 'A';
                        count[26]++;
                        break;
                    case 'B':
                        zimu[27] = 'B';
                        count[27]++;
                        break;
                    case 'C':
                        zimu[28] = 'C';
                        count[28]++;
                        break;
                    case 'D':
                        zimu[29] = 'D';
                        count[29]++;
                        break;
                    case 'E':
                        zimu[30] = 'E';
                        count[30]++;
                        break;
                    case 'F':
                        zimu[31] = 'F';
                        count[31]++;
                        break;
                    case 'G':
                        zimu[32] = 'G';
                        count[32]++;
                        break;
                    case 'H':
                        zimu[33] = 'H';
                        count[33]++;
                        break;
                    case 'I':
                        zimu[34] = 'I';
                        count[34]++;
                        break;
                    case 'J':
                        zimu[35] = 'G';
                        count[35]++;
                        break;
                    case 'K':
                        zimu[36] = 'K';
                        count[36]++;
                        break;
                    case 'L':
                        zimu[37] = 'L';
                        count[37]++;
                        break;
                    case 'M':
                        zimu[38] = 'M';
                        count[38]++;
                        break;
                    case 'N':
                        zimu[39] = 'N';
                        count[39]++;
                        break;
                    case 'O':
                        zimu[40] = 'O';
                        count[40]++;
                        break;
                    case 'P':
                        zimu[41] = 'P';
                        count[41]++;
                        break;
                    case 'Q':
                        zimu[42] = 'Q';
                        count[42]++;
                        break;
                    case 'R':
                        zimu[43] = 'R';
                        count[43]++;
                        break;
                    case 'S':
                        zimu[44] = 'S';
                        count[44]++;
                        break;
                    case 'T':
                        zimu[45] = 'T';
                        count[45]++;
                        break;
                    case 'U':
                        zimu[46] = 'U';
                        count[46]++;
                        break;
                    case 'V':
                        zimu[47] = 'V';
                        count[47]++;
                        break;
                    case 'W':
                        zimu[48] = 'W';
                        count[48]++;
                        break;
                    case 'X':
                        zimu[49] = 'X';
                        count[49]++;
                        break;
                    case 'Y':
                        zimu[50] = 'Y';
                        count[50]++;
                        break;
                    case 'Z':
                        zimu[51] = 'Z';
                        count[51]++;
                }
            }
            int ci = 0;
            int sum = 0;
            System.out.println("短文中各字母出现情况统计如下：");
            for (int i = 0; i < 52; i++) {
                if (count[i] != 0) {
                    ci++;
                    sum += count[i];
                }
            }

            ci = 0;
            for (int i = 0; i < 52; i++) {
                if (count[i] != 0) {
                    ci++;
                    System.out.println(count[i]);
                    double a = (double) ((Math.round(count[i] * 100) / 100.0) / sum) * 100;
                    double b = (double) (Math.round(a * 100) / 100.0);
                    System.out.println(ci + ".字母" + zimu[i] + "的出现次数是:" + b);
                }
            }
            System.out.println("字母共计：" + sum + "个");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static void mathmaticwords() throws IOException {
        BufferedReader br = new BufferedReader(new FileReader("src/newAnalysis.txt"));

        StringBuffer sb = new StringBuffer();
        String text = null;
        while ((text = br.readLine()) != null) {
            sb.append(text);
        }
        br.close(); // 关闭读入流

        String str = sb.toString().toLowerCase(); // 将stringBuffer转为字符并转换为小写
        String[] words = str.split("[^(a-zA-Z)]+"); // 非单词的字符来分割，得到所有单词
        Map<String, Integer> map = new HashMap<String, Integer>();

        for (String word : words) {
            int a=0;
            for (int i=0;i<stops.length;i++){
                if (word.equals(stops[i])){
                    a=1;
                }
            }
            if (a==0){
                if (map.get(word) == null) {
                    map.put(word, 1);
                } else {
                    map.put(word, map.get(word) + 1);
                }
            }
        }
        // 排序
        List<Map.Entry<String, Integer>> list = new ArrayList<>(map.entrySet());

        Comparator<Map.Entry<String, Integer>> comparator = new Comparator<Map.Entry<String, Integer>>() {
            public int compare(Map.Entry<String, Integer> left, Map.Entry<String, Integer> right) {
                return (left.getValue().compareTo(right.getValue()));
            }
        };
        // 集合默认升序升序
        Collections.sort(list, comparator);

        for (int i = 0; i < list.size(); i++) {// 由高到低输出
            System.out.println(list.get(list.size() - i - 1).getKey() + ":" + list.get(list.size() - i - 1).getValue());
        }
    }
}
